Dyfyniad APA

FIREFLY BOOKS. (2013). FIREFLY ENVIRONMENTAL STUDIES AN ACTIVITY BASED BOOK- A. FIREFLY BOOKS.

Dyfyniad Arddull Chicago

FIREFLY BOOKS. FIREFLY ENVIRONMENTAL STUDIES AN ACTIVITY BASED BOOK- A. FIREFLY BOOKS, 2013.

Dyfyniad MLA

FIREFLY BOOKS. FIREFLY ENVIRONMENTAL STUDIES AN ACTIVITY BASED BOOK- A. FIREFLY BOOKS, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.